(19)

(11)

EP 0 559 788 A1

(12)

(43) Date of publication: 15.09.1993 Bulletin 1993/37 (21) Application number: 92901511.0 (22) Date of filing: 19.11.1991

(51) International Patent Classification (IPC):  B32B 25/ 08( . ) F16J 15/ 10( . ) F16J 15/ 02( . ) F28F 3/ 10( . ) (86) International application number: PCT/US1991/008628 (87) International publication number: WO 1992/009428 (11.06.1992 Gazette 1992/13)

(84) Designated Contracting States: DE FR GB IT SE (30) Priority: 30.11.1990 US 19900620501 (71) Applicant: W.L. GORE & ASSOCIATES Newark, DE 19714 (US)	(72) Inventor: WATERLAND, Alfred, F. Elkton, MD 21921 (US) (74) Representative: Klunker . Schmitt-Nilson . Hirsch  Winzererstrasse 106 D-80797 München D-80797 München (DE)